22121210130 has 16 divisors (see below), whose sum is σ = 53090904384. Its totient is φ = 5898989360.

The previous prime is 22121210081. The next prime is 22121210131. The reversal of 22121210130 is 3101212122.

It is a super-2 number, since 2×22121210130² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (22121210131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368686806 + ... + 368686865.

It is an arithmetic number, because the mean of its divisors is an integer number (3318181524).

Almost surely, 2^22121210130 is an apocalyptic number.

22121210130 is an abundant number, since it is smaller than the sum of its proper divisors (30969694254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22121210130 is a wasteful number, since it uses less digits than its factorization.

22121210130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737373681.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22121210130 its reverse (3101212122), we get a palindrome (25222422252).

The spelling of 22121210130 in words is "twenty-two billion, one hundred twenty-one million, two hundred ten thousand, one hundred thirty".